Luericating system for internal-combustion engines



W. M` MILLIGAN Filed Nov. 8,

\\\\\wn\m` LUBRICATING SYSTEM FOR INTERNAL COMBUSTION ENGINES Feb. 5 1924.

, BY ATTORNEY Patented l? 5, ld. i

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Other objects and advans of the inle vention will appear in the followi description.

'lhe invention consists in the novel construction, arrangement and combination ol parts hereinafter described and claimed.

2t ln the accompanying drawings,-

lFigure 1 is a vertical sectional view of a portion of 4an internal combustion engine illustrating an embodiment of my invention to the valve mechanism. Fig. 2 is a per- 25 spective view of one of the complementary parts ot the oil receivingcup. Fig. 3 is a plan view ot the clasp-spring lor retainin the cup members in coupled relations with each other. f.

S0 ln said drawing, the reference neral 5 represents an intake or exhaust valve having a stem 6 passing1 through a tguide l of an enf ginehlock 8 and into an adjusent attachment 9.

The adjustment 9 en in a lifter rod 10 and is secured by means of a loch nut ll engaging screw thres rovided on the adjustrnent. The' lifter rodp 10 exnds through a guide l2 and is elevated to edectthe opendit t@ ing movements of the valve by means ol a cani U in opposition to a valve closing spri 113 which is positioned between the guide and a stop collar ld provided on the valve stem 6. f

es The parts'ahove descrip@ are of ownconstruetion'.

According to the resent invention the valve stem 6 is provi d axially with a duct extending from a side outlet 15 within the et guide 7 and communicates through ducts l@ n Beach, in the county of @range and thence is fed upwardly through said ducts and the outlet 15 to lubricate the valve stem. with respect to the guide 7. 20 represents an aperture provided in the guide 7 at an elevation to register with the outlet 151 of C@ the stem when the same is at or near its uppermost position for conducting oil into a groove 21 through which surplus oil escapes and Hows downwardlyand about the lower portion ol the guide onto the peripheral sur- @D face of the valve stem.

lhe oil thus delivered upon the valve stem descends thereon through a hole 22 provided in the collar 14 and into a-cup 23 whieh is seated upon a washer or collar 2t et elt or to suitable packing which is seated upon the adjustment 9. f

helical spring 25 ol ls @wer than the valve closing spring` 13 is employed helow the stop collar 14: to retain the cup in its SEU lowermost position on the stem. For the purpose of removing it trom the stem, said cup is formed of two^ semicircular members 231 and 232 and are separably held together as by means of a clasp ring'26 extending cizrcumlerentially about sii'he cup in a groove ln operation oil supplied through the pipe 19 passes upwardly through the valve stern 6 and emitted through outlet ll to luhr'icate the stem in the guide 7.

llt or near the end of its upward strokes oil is delivered from said outlet into pwsage 20 whence it descends into the cup 23 to lubricate the lower portion ol the stom through the medium of the telt washer 2d.

'lhe vinvention illustrated and described shows the same applied to one type of valve mechanism, but it may be applied to other types or arrangement ot valve mechanisms.

What l claim, is,-

l. ln an internal combustion engine, a yalve stem provided with an axial duct ha ing a side outlet, means tor supplydng oil into said duct, a guide surrounding said stem and having an opening, 'adordine communication hetween said outlet and the peripheral surfaee oi the stem below said guide, and means provided on said stem tor retaining'the oil discharged through the guide openinfv.

2. ln an internal combustion cumino, a valve stein providedA with an axial duet, a guide surrounding said stem, means for sup -M plying `oil into saidduot, said stem lieing` tio et'A lee

provided in its periphery with an opening for delivery of oil from said duct to lubricate the interior of said guide, a two-part cup, and means for detachably connecting sald cup to the stem below the guide for receiving surplus oil from the latter.

valve-stem having therein an axially disposed duct and a discharge opening leading to the stem guide of the engine to be lubricated, means for supplying oil into said duct, and means including an oil absorbent material for applying surplus oil from saidguide to lubricate the valve stem exteriorly of the stem uide.

4. In an Internal combustion engine, the

- combination of a valve stem provided with an axially arranged ducthaving a side outlet, a lifter rod for said Stem and provided with a duct communicating with the duct of said stem, guides for the stem and the lifter rod, and means extending through the lifter-rod guide for supplying oil for lubricating the same and also to the stem duct and the outlet thereof for lubricating the stern guide.

5. In an internal combustion engine, the combination with the engine frame, of "a valve, a stem therefor, a guide for said stem,

l said stem being provided with an axially ar- 3. In an internal combustion engine, a

ranged oil duct having a side outlet disposed Within said guide, means for supplying oil through said duct and outlet to lubricate the stem bearing within the guide, an oil delivery Way including in said guide an aperture which is located to receive oil from said outlet when the stem is at or near the end of its valve opening stroke, a cup detachably connected to the stem below the guide, and an absorbent material applied to the stem and in juxtaposed relations with said cup;

Signed at Huntington Beach, Calif., this th day of October, 1922.

WALKER M. MILLIGAN. Witnesses:

C. T. PALMER, Enum L. CooNs. 

